When bin_size=True is in the context, a computed non-attachment binary
is incorrectly saved to the database. The row is actually updated with
the size of the binary instead of the value itself.
This commit fixes the problem by avoiding setting the cache with the
bin_size value as dirty.
Moreover, the binary size is computed with `pg_size_pretty` for
non-attachment binary fields. Also, method compute_value() calls
b64decode() on the value that was previously encoded in base64 by
_compute_datas(). But _compute_datas() is specific to attachments, and
is not used in this case. Thus b64decode() doesn't make sense.
These 3 bugs are now covered by testing web_save(), where cache
consistency is required. It was first reported for this method.
Closes#156673closesodoo/odoo#160708
Signed-off-by: Raphael Collet <rco@odoo.com>
Co-authored-by: Renaud Thiry <reth@odoo.com>
